Add remember me functionality, handle both types of sessions appropriately

controllers/postController.go

@@ -24,13 +24,14 @@ func (postController *PostController) Login(w http.ResponseWriter, r *http.Reque
 
 	username := r.FormValue("username")
 	password := r.FormValue("password")
+	remember := r.FormValue("remember") == "on"
 
 	if username == "" || password == "" {
 		log.Println("Tried to login user with empty username or password")
 		http.Redirect(w, r, "/login", http.StatusFound)
 	}
 
-	_, err = models.AuthenticateUser(postController.App, w, username, password)
+	_, err = models.AuthenticateUser(postController.App, w, username, password, remember)
 	if err != nil {
 		log.Println("Error authenticating user")
 		log.Println(err)

models/migrations.go

@@ -22,10 +22,11 @@ func RunAllMigrations(app *app.App) error {
 	}
 
 	session := Session{
-		Id:        1,
-		UserId:    1,
-		AuthToken: "migrate",
-		CreatedAt: time.Now(),
+		Id:         1,
+		UserId:     1,
+		AuthToken:  "migrate",
+		RememberMe: false,
+		CreatedAt:  time.Now(),
 	}
 	err = database.Migrate(app, session)
 	if err != nil {

models/session.go

@@ -10,10 +10,11 @@ import (
 )
 
 type Session struct {
-	Id        int64
-	UserId    int64
-	AuthToken string
-	CreatedAt time.Time
+	Id         int64
+	UserId     int64
+	AuthToken  string
+	RememberMe bool
+	CreatedAt  time.Time
 }
 
 const sessionColumnsNoId = "\"UserId\", \"AuthToken\", \"CreatedAt\""
@@ -26,13 +27,15 @@ const (
 	insertSession                 = "INSERT INTO " + sessionTable + " (" + sessionColumnsNoId + ") VALUES ($1, $2, $3) RETURNING \"Id\""
 	deleteSessionByAuthToken      = "DELETE FROM " + sessionTable + " WHERE \"AuthToken\" = $1"
 	deleteSessionsOlderThan30Days = "DELETE FROM " + sessionTable + " WHERE \"CreatedAt\" < NOW() - INTERVAL '30 days'"
+	deleteSessionsOlderThan6Hours = "DELETE FROM " + sessionTable + " WHERE \"CreatedAt\" < NOW() - INTERVAL '6 hours' AND \"RememberMe\" = false"
 )
 
 // CreateSession creates a new session for a user
-func CreateSession(app *app.App, w http.ResponseWriter, userId int64) (Session, error) {
+func CreateSession(app *app.App, w http.ResponseWriter, userId int64, remember bool) (Session, error) {
 	session := Session{}
 	session.UserId = userId
 	session.AuthToken = generateAuthToken(app)
+	session.RememberMe = remember
 	session.CreatedAt = time.Now()
 
 	// If the AuthToken column for any user matches the token, set existingAuthToken to true
@@ -47,11 +50,11 @@ func CreateSession(app *app.App, w http.ResponseWriter, userId int64) (Session,
 	// If duplicate token found, recursively call function until unique token is generated
 	if existingAuthToken == true {
 		log.Println("Duplicate token found in sessions table, generating new token...")
-		return CreateSession(app, w, userId)
+		return CreateSession(app, w, userId, remember)
 	}
 
 	// Insert session into database
-	err = app.Db.QueryRow(insertSession, session.UserId, session.AuthToken, session.CreatedAt).Scan(&session.Id)
+	err = app.Db.QueryRow(insertSession, session.UserId, session.AuthToken, session.RememberMe, session.CreatedAt).Scan(&session.Id)
 	if err != nil {
 		log.Println("Error inserting session into database")
 		return Session{}, err
@@ -76,13 +79,25 @@ func generateAuthToken(app *app.App) string {
 
 // createSessionCookie creates a new session cookie
 func createSessionCookie(app *app.App, w http.ResponseWriter, session Session) {
-	cookie := &http.Cookie{
-		Name:     "session",
-		Value:    session.AuthToken,
-		Path:     "/",
-		MaxAge:   86400,
-		HttpOnly: true,
-		Secure:   true,
+	cookie := &http.Cookie{}
+	if session.RememberMe {
+		cookie = &http.Cookie{
+			Name:     "session",
+			Value:    session.AuthToken,
+			Path:     "/",
+			MaxAge:   2592000 * 1000, // 30 days in ms
+			HttpOnly: true,
+			Secure:   true,
+		}
+	} else {
+		cookie = &http.Cookie{
+			Name:     "session",
+			Value:    session.AuthToken,
+			Path:     "/",
+			MaxAge:   21600 * 1000, // 6 hours in ms
+			HttpOnly: true,
+			Secure:   true,
+		}
 	}
 
 	http.SetCookie(w, cookie)
@@ -116,10 +131,17 @@ func DeleteSessionByAuthToken(app *app.App, w http.ResponseWriter, authToken str
 
 // ScheduledSessionCleanup deletes expired sessions from the database
 func ScheduledSessionCleanup(app *app.App) {
-	// Delete sessions older than 30 days
+	// Delete sessions older than 30 days (remember me sessions)
 	_, err := app.Db.Exec(deleteSessionsOlderThan30Days)
 	if err != nil {
-		log.Println("Error deleting expired sessions from database")
+		log.Println("Error deleting 30 day expired sessions from database")
+		log.Println(err)
+	}
+
+	// Delete sessions older than 6 hours
+	_, err = app.Db.Exec(deleteSessionsOlderThan30Days)
+	if err != nil {
+		log.Println("Error deleting 6 hour expired sessions from database")
 		log.Println(err)
 	}
 

models/user.go

@@ -98,7 +98,7 @@ func CreateUser(app *app.App, username string, password string, createdAt time.T
 }
 
 // AuthenticateUser validates the password for the specified user
-func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, password string) (Session, error) {
+func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, password string, remember bool) (Session, error) {
 	var user User
 
 	// Query row by username
@@ -114,7 +114,7 @@ func AuthenticateUser(app *app.App, w http.ResponseWriter, username string, pass
 		log.Println("Authentication error (incorrect password) for user:" + username)
 		return Session{}, err
 	} else {
-		return CreateSession(app, w, user.Id)
+		return CreateSession(app, w, user.Id, remember)
 	}
 }